Add Caddy authentication and Claude Matrix user setup

- Created caddyfile-docs-update.txt with Caddy basic auth configuration
- Fixed documentation path from /home/klas/langmem-docs to /home/klas/langmem/docs
- Added basic auth with credentials: langmem / langmem2025
- Created create-claude-matrix-user.md with user creation instructions
- Added get-claude-token.py script for automated Matrix setup
- Includes token retrieval, room joining, and configuration export

Manual steps required:
1. Update /etc/caddy/Caddyfile with new docs.klas.chat config
2. Reload Caddy: sudo systemctl reload caddy
3. Create Claude Matrix user via admin panel
4. Run get-claude-token.py to complete setup

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

caddyfile-docs-update.txt

@@ -0,0 +1,40 @@
+# Updated docs.klas.chat configuration with authentication
+# Replace the existing docs.klas.chat block in /etc/caddy/Caddyfile with this:
+
+docs.klas.chat {
+	tls /certs/klas.chat/fullchain.cer /certs/klas.chat/klas.chat.key
+
+	# Basic Authentication
+	basicauth * {
+		langmem $2a$14$.1fx02QwkkmfezhZMLE4Iu2N/ub5vwDSAtcH9lAa5z11ChjiYy1PG
+	}
+
+	# Security headers
+	header {
+		X-Frame-Options "DENY"
+		X-Content-Type-Options "nosniff"
+		X-XSS-Protection "1; mode=block"
+		Referrer-Policy "strict-origin-when-cross-origin"
+		Strict-Transport-Security "max-age=31536000; includeSubDomains"
+		Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' https://cdn.jsdelivr.net; style-src 'self' 'unsafe-inline' https://cdn.jsdelivr.net; img-src 'self' data: https:; font-src 'self' data:;"
+	}
+
+	# Static file serving - UPDATED PATH
+	root * /home/klas/langmem/docs
+	file_server
+
+	# SPA routing fallback for clean URLs
+	try_files {path} {path}/ /index.html
+
+	# Enable compression
+	encode gzip
+
+	# Cache static assets
+	@static {
+		path *.css *.js *.png *.jpg *.jpeg *.gif *.svg *.ico *.woff *.woff2
+	}
+
+	header @static Cache-Control "public, max-age=31536000, immutable"
+}
+
+# Credentials: langmem / langmem2025